C20 Tire Selection

[dagnabbitt]

So I recently pulled a 1968 C20 out of a field - build thread coming soon - and I need to make a decision on tires. It had some non-original split rims on it (I assume they were non original since they were 17" and not the 16.5s that were on the SPID), and tube tires that might actually pre-date the truck itself.

Fortunately I knew from poring over this site that I could put F*rd rims on it, and one day I realized that I had a friend with a bunch of E250 vans. So I got a set of from him and they of course fit great! Again without this site as a resource it would never ever occur to me that they would fit.

They are a 16x7 rim, any thoughts on tire size? I like the tall skinny look but a 7 inch rim is actually pretty wide compared to original, and I want something that suits the rims as much as it suits the truck: I don't like it when the tires are noticeably crammed or stretched onto a wheel. Would 235 85 16s look good on this rim, or should I go with something wider, like a 265 70 16?

If someone could flip my pics I would appreciate it.